the PCI Latency Timer, I switched to 32.. now don't quote me.. but I noticed things to be... snappier. Idk. I've tried running M92, Madison. Both booted up fine but I'm left with just the 6620g running for Madison and 6750 for M92. M92 was very unstable for me, within 10 seconds it locked up after loading into windows. The HCF - iGPU doesn't allow CCC to integrate with it. So you get no menu or icon, but drivers still work.
So I've just used Muxless and fixed, with dynamic disabled and none for MXM or XGP (forget)
Did you all flash with the GPU OC Camolil's Bios? Maybe that could be the problem. Since we are all running different chips and revisions here and some have a70 or a60.
Try the one without and post back.
Maybe we should make our own Manual, yeah....
Yeah, I read up on the latency, usually lower is worse than higher (128 or above) but in my case my audio would crack and occasionally do that sound glitch when you go from one app to another, hopefully you know what I'm talking about.
800/1000 with our version of the 6750m, gets you 64.0 GByte/s bandwidth. I think stock it was around 52?
I did notice when you switch from Power-saving GPU to High-performance GPU (or vice versa,) it switches fine but if you switch back suddenly, it won't switch. So give it a few seconds to fully change over before switching back. I'd say software would be partially to blame there too. Mostly the operators fault